13241243120321 has 2 divisors, whose sum is σ = 13241243120322. Its totient is φ = 13241243120320.

The previous prime is 13241243120299. The next prime is 13241243120341. The reversal of 13241243120321 is 12302134214231.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12841615590400 + 399627529921 = 3583520^2 + 632161^2 .

It is a cyclic number.

It is not a de Polignac number, because 13241243120321 - 2¹⁴ = 13241243103937 is a prime.

It is not a weakly prime, because it can be changed into another prime (13241243120341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6620621560160 + 6620621560161.

It is an arithmetic number, because the mean of its divisors is an integer number (6620621560161).

Almost surely, 2^{13241243120321} is an apocalyptic number.

It is an amenable number.

13241243120321 is a deficient number, since it is larger than the sum of its proper divisors (1).

13241243120321 is an equidigital number, since it uses as much as digits as its factorization.

13241243120321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 13241243120321 its reverse (12302134214231), we get a palindrome (25543377334552).

The spelling of 13241243120321 in words is "thirteen trillion, two hundred forty-one billion, two hundred forty-three million, one hundred twenty thousand, three hundred twenty-one".